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Parquet subsetting is slow #11

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JoshCu opened this issue Jan 29, 2024 · 0 comments
Open

Parquet subsetting is slow #11

JoshCu opened this issue Jan 29, 2024 · 0 comments

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@JoshCu
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JoshCu commented Jan 29, 2024

a large portion of the subsetting is the parquet file being written out as a csv, this happens serially and is very slow.
Investigate ways of speeding this up.
Chunk and write out then concat csv?
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@JoshCu